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zhuklara [117]
3 years ago
12

Where in an embryo are the instructions located for how to build organs?

Biology
2 answers:
krok68 [10]3 years ago
6 0
Is there a picture or diagram so i can help you
iren2701 [21]3 years ago
3 0
All the instructions are encoded in the DNA within the nucleus.
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2 years ago
Which type of plate boundary produces seafloor spreading?
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2 years ago
Hypotonic, hypertonic, or isotonic
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Answer:

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Explanation:

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3 years ago
What molecule enters the citric acid cycle and combines with oxaloacetate to form citric acid?.
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8 0
11 months ago
When does the cell have to use active transport?
kati45 [8]


The best answer is D.

In active transport, molecules move against a concentration gradient from areas of lower concentration to areas of higher concentration. This happens a lot in neurons. The membrane proteins are constantly pumping ions in and out  to get the membrane of the neuron ready to transmit electrical impulses.

In active transport , energy is required to move molecules across the cell membrane. Carrier proteins are needed for this e.g. proteins of the GLUT family which transport glucose molecules across the cell membrane. Carrier proteins are very specific. GLUT proteins will only move glucose molecules and not sodium or calcium. There are hundreds of types of carrier proteins.


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3 years ago
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